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Finding the Third Proportional to 63,855 and 129,533

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Solution

The third proportional to 63,855 and 129,533 is: 262,764.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,855 : 129,533 = 129,533 : x
  2. Step 2: Convert to fraction form
    63,855/129,533 = 129,533/x
  3. Step 3: Cross multiply
    63,855x = 129,533 × 129,533
  4. Step 4: Simplify right side
    63,855x = 16,778,798,089
  5. Step 5: Solve for x
    x = 16,778,798,089/63,855
  6. Step 6: Final answer
    x = 262,764.04

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Why These Related Problems?

These problems maintain the same ratio (2.03) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.